Chafing plate



W. l.. TEDFORD QHAFING PLATE Filed Feb. 17. `19:25

remise ce. zal, 1923,

usarse stares lWILLIAIVI LAWRENCE TEDFORD, OF PARIS,

CHAFING PLATE.

Appueauon filed 'February 17, 19,23. serial No. 619,655.' 1

To @ZZ whom t may concern.'

Be it known that I, WILLIAM L. TnDroRD,

a. citizen ot the United States, residing at Paris, France, have invented a certain new .and useful Improvement in Chaling Plates, of which the tollowing is a. full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this application.

rThis invention relatesto a new and useful improvement in chaling plates for truck holsters, the object being toi provide a| bolster with a renewable chafing plate, 'which plate is scheld in position that it is secured against movement in all directions except upwardly by being interlocled with the bolster, the upward movement ot the chafing plate being restrained by a bolt or other removable fastening device for facilitating removability and renewability, when desired.

In the drawings- Figure l is a partial plan view ot a part of a. car truck frame and one end of a. car truck bolster pro-vided with my improved chafng plate. Y

Figure 2 is a side elevational view, partly in section, of the parts shown in Figure l.

Figure 3 is a sectional View on line 3--3 of Figure l.

Figure l is a top plan view of a modilied form of chafing plate.

Figure 5 is a side elevational view ot the form shown in Figure il.

Figure 6 is a sectional view on the line 6-6 ot Figure 4.

Figure 7 is a top plan view ot another form of chaing plate. Figure 8 is a side elevational view of the A form oi chaling plate sho-wn in Figure 7.

p Figure 9 is a sectional vie-w on line 9-9 of Figure 7.

Figure l0 is a detail view of the chang plate shown in Figures 7, 8 and 9.

Figure ll is a top plan view of amoditled form et fastening means for the cha-fing plates. Y

Figure 12 is a section through a bolster illustrating another modification of 'my inventio-n.

ln the drawings, A indicates a part ot the car truck trame, B indicates one end'ot a car truck bolster, and C indicates a chaing plate? shown `in Figures l, 2 and 3 `as being made of pressed material, the upper portion ,Y v i MUZ i otvsaid chating plate being Teshaped and placedin a recess in the topf face of the bolster, thereby becoming interlocked with the bolster. the bolster andextending over the edge of the chaiing plate to lock it against upward movement. This bolt can be removed and the chaing plate raised out ot interlocking engageinentrfor purposes of renewal when the old chafing plate is worn.v

In Figures l, 5 and 6, l vhave shown a.

charting plate C made of cast metal in which there is a T-shaped rib at the bac-k of the plate dovetailed into Va correspondingly shaped groove in the side wall of the bolster.

This form of chang plate is held in position by bolt D heretofore described.

In Figures 7 to 10, inclusive, the chating plate C is made ot pressed steel, its horizontal leg being curved, as shown in Figure l0, and oi slightly greater widthy than the recess in the top face of the bolster.

rVlhen this form of chaiing plate is placed in position and bolt D is threaded home and tightened against the bowed portion, the horizontally curved portion of the chatlng plate will be ilattened and expanded in width and thus be securely locked between the edges of the recesses in the top of theV bolster. Thus, the @hating plate is held against displacement by friction. The walls ot the recesses which receivev the curved horizontal portion ot the chafing plate may be slightly undercut, it desire In Figure 1l, I have shown a side bearing v casting E having bottom ianges which are bolted to the top Vof the bolster by bolts F.

This casting extends laterally over the horizontal portions of the chatlng plates on each Aside of the bolster, and hencethe side bear- D indicates a bolt threaded into ing constitutes a 'asteningmeansfor the renewable chaling plates which are seated in suitable recesses in the top of the bolster to prevent movement other than vertical.

Figure 12 illustrates chaiing plates G for the opposite sides of the bolster H formed in a singleA piece, of inverted U-shape, straddlingthe bolster, and held in place either bv vertical bolts .I or by the side bearing which in turn is bolted to the bolster. In this form no recesses in the bolster are ne:-

essary.

What I; claim isf? 1s renewable @hating plate for' car truc-k bolsters having means for interlocking engagement with thevbolster toprevent move-- ment in all directions excepting one, and removable fastening means for loclt'i'ng;- the chaing platein position. p

2. In a truck, a bolster, a chaiingy plate forl engagementvwith the top and side of the bolster and removable vertically upwardly from the bolster, and detachable means for securing said plate against suoli movement. l3. In combination, a truclrbolster having alrecess in lits upper face and a bolster chafin'g plate litting in said recess and extending along a portion of the side of said bolster, and removable'niea'n's for retaining said plate against movement from said recess.

In testimony whereof I hereunto aiiiX my signature this 14th day of February, 1923.

I/VILILI'AMy ILR'ENUE TEDFORD. 

